Base | Representation |
---|---|
bin | 111001011000… |
… | …100101110010 |
3 | 1001022021000120 |
4 | 321120211302 |
5 | 12322333210 |
6 | 1254231110 |
7 | 241601640 |
oct | 71304562 |
9 | 31267016 |
10 | 15042930 |
11 | 8544a81 |
12 | 5055496 |
13 | 3169056 |
14 | 1dd8190 |
15 | 14c2270 |
hex | e58972 |
15042930 has 32 divisors (see below), whose sum is σ = 41261184. Its totient is φ = 3438336.
The previous prime is 15042919. The next prime is 15042931. The reversal of 15042930 is 3924051.
15042930 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.
15042930 is strictly pandigital in base 8.
It is a self number, because there is not a number n which added to its sum of digits gives 15042930.
It is not an unprimeable number, because it can be changed into a prime (15042931) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35607 + ... + 36026.
It is an arithmetic number, because the mean of its divisors is an integer number (1289412).
Almost surely, 215042930 is an apocalyptic number.
15042930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
15042930 is an abundant number, since it is smaller than the sum of its proper divisors (26218254).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15042930 is a wasteful number, since it uses less digits than its factorization.
15042930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 71650.
The product of its (nonzero) digits is 1080, while the sum is 24.
The square root of 15042930 is about 3878.5216255682. The cubic root of 15042930 is about 246.8562599672.
Adding to 15042930 its reverse (3924051), we get a palindrome (18966981).
The spelling of 15042930 in words is "fifteen million, forty-two thousand, nine hundred thirty".
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